Hey good luck with the two Challengers
Both cars look really great. Remember, they are 40+ years old
You are getting great advice.
Restore the 340 car. It has a rare color combo and is basically an RT w a high powered small block.
The 340 Challengers are known as A66 cars and are special Challengers with a strong following.
There are a lot of great posts on the A66 cars; you should read them and learn what you can about these cars.
The six would make a good daily driver, especially with gas prices always fluctuating. They are also becoming more rare with everyone modifying the 6cyl cars.
You are in a great position to restore two fun cars.
Best wishes to a new Challenger owner
70Convert